Sewing machine

Sewing – Special machines – Quilting

Patent

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Details

112 79R, 112 95, 112 98, 112164, 112185, 112241, 1122661, D05B 1100, D05B 112, D05B 5708, D05B 4902

Patent

active

044703600

ABSTRACT:
A quilting machine employs bobbin holders which support bobbins each having a conical lower portion ending in a point. A plurality of hooks are driven in an eliptical path to engage and pull down a loop of thread formed by insertion of a needle through a needle plate and the partial withdrawal thereof. The hooks keep the loop open and pull it down so that it passes over the pointed lower end of the bobbin. In order to facilitate engagement of the loop over the bobbin, the bobbins are maintained in sloped fashion. A thread take-up mechanism pulls up the loop of thread with one of the strands of the loop passing behind the bobbin between the bobbin and the bobbin holder to form a lock stitch.

REFERENCES:
patent: Re11412 (1894-04-01), Gardner
patent: 379570 (1888-03-01), Gardner
patent: 447307 (1891-03-01), Gardner
patent: 1221857 (1917-04-01), Hildt
patent: 2589340 (1952-03-01), Chambers
patent: 2595355 (1952-05-01), Hamby
patent: 2895438 (1959-07-01), Shotsky
patent: 3066624 (1962-12-01), Jeppener, Sr. et al.
patent: 3407764 (1968-10-01), Rohrlick et al.

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